JP2001216376A - Internet business method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the Internet merchandise transaction method capable of improving the secrecy of personal information, etc., in particular in a merchandise transaction method using the Internet. SOLUTION: In this business method using the Internet, a purchaser is connected with (n) pieces of servers owned by respectively different Internet providers simultaneously by using (n) kinds (n is a natural number >=2) of communication means and in the case of transmitting information on business, this information is divided into (n) pieces to transmit the respective divided information to WWW servers where a seller performs a service through the (n) pieces of servers.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a merchandise transaction method using the Internet, and more particularly to an Internet commerce method capable of improving the confidentiality of personal information and the like.

[0002]

2. Description of the Related Art In recent years,
Commodity transactions using the Internet are increasing. Consumers can order products via the Internet using a personal computer or the like at home without going to a store.

However, in conventional merchandise transactions on the Internet, items that should be confidential between the parties, such as credit card numbers, cash card numbers, personal identification numbers, passwords, electronic signatures, etc., during the course of the transaction, are not related to other parties. Leaked to third parties and relatively vulnerable to the danger of their misuse. As one of the measures,
Although encryption of a message is cited, there is a problem that encryption is complicated to ensure security. In addition, this results in a problem that the time required for communication increases and at the same time the communication cost increases. Further, in the course of the transaction, even if the content or the electronic signature required for authentication has been tampered with, it is difficult for the side to confirm it.

[0004] Further, when a seller or a buyer transmits information by impersonating an imaginary person (company) or a third party unrelated to the transaction, using an authentication code, an electronic signature, or the like necessary for the transaction by misrepresentation. It is also difficult to confirm whether or not the person is the person. Also, if a failure is found in the communication line during the course of the transaction, it is difficult to back up the communication line and check the communication contents. Further, there is a problem that even when it is necessary to immediately confirm the transaction contents, the confirmation work requires time due to congestion of the communication path and the like, and there is a risk that the reliability of the transaction may be impaired.

[0005] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an Internet commerce method that can improve the confidentiality of personal information and the like in a method of trading goods using the Internet. Aim.

[0006]

According to a first aspect of the present invention, there is provided a commercial transaction method using the Internet, wherein the buyer uses n types (n is a natural number of 2 or more) of communication means. Then, when simultaneously connecting to n servers owned by different Internet providers and transmitting information on commercial transactions, the information is divided into n, and each divided information is passed through the n servers. Then, the seller transmits the information to the WWW server that performs the service.

[0007] The invention according to claim 2 is characterized in that, in the Internet commerce method, when the commercial transaction information is divided, the information is divided into order details and personal identification information of the buyer and transmitted.

According to a third aspect of the present invention, in the Internet commerce method, the personal identification information of the buyer is encrypted and transmitted.

According to a fourth aspect of the present invention, in the Internet commerce method, the identification information of the individual buyer is encrypted, and the encrypted information is further subdivided and transmitted.

[0010] The invention according to claim 5 is characterized in that the identification information of the individual buyer is a credit card number. The invention according to claim 6 is characterized in that the identification information of the individual buyer is an electronic signature.

According to a seventh aspect of the present invention, there is provided a commercial transaction method using the Internet. In the commercial transaction method, a buyer uses n types (n is a natural number of 2 or more) of communication means and uses different Internet services. When connecting to the n servers owned by the provider and transmitting information related to the commercial transaction, the n same information is transmitted to the WWW server on which the seller performs the service via the n servers. The WWW server that has received the n pieces of information collates all the pieces of received information, and accepts this information when all pieces of information match.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an Internet commodity trading method according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the embodiment.
In this figure, reference numeral 1 denotes a personal computer owned by a consumer, on which WWW browser software (hereinafter referred to as browser software) is installed. Symbols 2-1 to 4
Is a server group (hereinafter, simply referred to as a server) including WWW servers owned by the respective providers. Symbol 3-
Reference numerals 1 to 4 denote communication means for connecting the personal computer 1 and the servers 2-1 to -4. Reference numeral 4 denotes a router for routing an IP packet. Reference numeral 5 is the Internet. Reference numeral 6 denotes a WWW server that performs a product transaction service.

Here, the communication means will be described. The communication means referred to here is to establish a communication line between the personal computer 1 and the server 2-1 owned by the provider,
As a client of the server 2-1, such as a public line network such as an analog telephone line, ISDN, or a mobile phone, or a dedicated line. This communication line may be wired or wireless. However, the personal computer 1 has at least two of the four communication units 3-1 to 4 shown in FIG.
It is possible to communicate using two communication lines simultaneously. Further, each of the four communication means 3-1 to -4 can be connected to any of the servers 2-1 to -4.

Next, with reference to the drawings, an operation in which a consumer uses the personal computer 1 to make a commodity transaction will be described. First, an operation of encrypting and transmitting a credit card number and the like will be described with reference to FIG. In the following description, a person who intends to purchase a product using the personal computer 1 is referred to as a buyer, and a person who intends to sell the product using the WWW server 6 is referred to as a seller.

First, the buyer accesses a homepage on which the seller provides a service (S1). And the buyer
Fill out the order details on this homepage (S2) and at the same time enter your credit card number (S3).

Next, the entered credit card number is encrypted (S4a) and a decryption key for this encryption is created (S4b). Then, the buyer communicates with the communication means 3-
1 and transmits the order details to the seller via the server 2-1 (S5a). At this time, the buyer simultaneously transmits the encrypted credit card number together with the order details using the communication means 3-1 via the server 2-1 (S5b). The decryption key is transmitted by the communication means 3
-2 is transmitted via the server 2-2 (S5).
c). As described above, the buyer divides the information that needs to be transmitted into two pieces and transmits the necessary information using two communication paths.

On the other hand, the seller sends the order contents (S6a), ciphertext (S6b), and decryption key (S6) transmitted from the buyer.
6c). Then, the seller records the details of the order issued by the buyer (S7). At the same time, the seller transfers the sales information (card holder name, amount, settlement date, seller code, etc.) to the credit company (S8a). Further, the seller transfers the encrypted buyer's credit card number and decryption key to the credit company (S
8b, S8c).

Next, the credit company provides sales information (S9
a), the encrypted buyer's credit card number (S
9b) and the decryption key (S9c) are received from the seller. Then, the credit company decrypts the encrypted buyer's credit card number and performs credit confirmation (S1).
0), and notifies the seller of the confirmation contents (S1).
1).

Next, the seller checks the contents of the order (S1).
2) A reply to the buyer confirming the order is returned (S1).
3) The transaction is completed. As described above, since the communication information (the credit card number and the like) is divided and transmitted using the two communication paths, the leakage of the communication information can be prevented. In addition, since encryption can be simplified, communication time and communication cost can be reduced.

Next, another embodiment will be described with reference to FIG. First, the buyer accesses a homepage on which the seller provides a service (S14). Then, the buyer fills out the order details on this homepage (S15) and at the same time inputs his / her credit card number (S16).

Next, the entered credit card number is encrypted. Further, the encrypted credit number is divided into two, and encryption A (S17a) and encryption B (S17
b). Then, the buyer uses the communication means 3-1 to transmit the order details to the seller via the server 2-1 (S18a). At this time, the buyer simultaneously uses the communication means 3-1 with the encryption A together with the order contents,
The data is transmitted via the server 2-1 (S18b). Encryption B
Transmits via the server 2-2 using the communication means 3-2 (S18c). As described above, the buyer divides the information that needs to be transmitted into two pieces and transmits the necessary information using two communication paths.

On the other hand, the seller sends the order contents (S19a), encryption A (S19b), and encryption B transmitted from the buyer.
(S19c) are received. Then, the seller records the details of the order issued by the buyer (S20). At the same time, the seller provides sales information (cardholder name, amount, settlement date,
(S21, etc.) to the credit company (S21)
a). In addition, the seller has crypto A
(S21b) and the cipher B (21c) are transferred.

Next, the credit company checks the sales information (S2
2a), cipher A (S22b), and cipher B (S22c)
Received from the seller. Then, the credit company decrypts the encrypted buyer's credit card number and performs credit confirmation (S23), and notifies the seller of the details of the confirmation (S24).

Next, the seller confirms the contents of the order (S2).
5) A reply to the buyer confirming the contents of the order is returned (S2).
6) The transaction is completed. As described above, since the encrypted information is divided and transmitted using the two communication paths, leakage of the communication information can be prevented.

Next, another embodiment will be described with reference to FIG. First, the buyer accesses a homepage on which the seller provides a service (S27). Then, the buyer fills out the order details on this homepage (S28) and at the same time inputs his credit card number (S29).

Next, the entered credit card number is encrypted and a decryption key for this encryption is created.
At this time, the encrypted credit card number is disassembled into two, which are cipher A (S30a) and cipher B (S30b). In addition, the decryption key of the encryption is decomposed into two, and the key a (S
30c) and key b (S30d). Then, the buyer uses the communication means 3-1 and through the server 2-1.
The order contents are transmitted to the seller (S31a). At this time, the buyer simultaneously transmits the encryption A together with the order contents using the communication means 3-1 via the server 2-1 (S31b). The cipher B is transmitted via the server 2-2 using the communication unit 3-2 (S31c). The decryption key a is transmitted to the server 2-3 using the communication unit 3-3.
(S31d). The decryption key b is transmitted via the server 2-4 using the communication means 3-4 (S31e). In this way, the buyer divides the information that needs to be transmitted into four pieces and transmits the necessary information using four communication paths.

On the other hand, the seller determines the order contents (S32a) transmitted from the buyer, and the codes A and B (S32b and S32).
c) and decryption keys a and b (S32d and S32e) are received, respectively. Then, the seller records the details of the order issued by the buyer (S34). At the same time, the seller has sales information (card holder name, amount, settlement date, seller code, etc.)
Is transferred to the credit company (S35a). Further, the seller decrypts the buyer's credit card number and transfers it to the credit company (S35b).

Next, the credit company enters the sales information (S3
6a), the decrypted buyer's credit card number (S
36b) is received from the seller. Then, the credit company checks the credit card number and confirms the credit (S
37), and notifies the seller of the confirmation contents (S3).
8).

Next, the seller checks the contents of the order (S3
9), and return a confirmation of the order contents to the buyer (S4).
0), the transaction is completed. As described above, since communication information (encrypted text of a credit card number, a decryption key, and the like) is divided into four and transmitted using four communication paths, leakage of communication information can be prevented.

Next, with reference to FIG. 5, an operation for preventing the information of the commodity transaction from being falsified by a third party will be described. Here, it is assumed that the parties A and B negotiate a transaction using the Internet. First, party A
Starts negotiations on a transaction with the party B as a transaction partner (S41). Then, the party A creates a document for confirming the contents of the transaction (S42) and inputs an electronic signature (S43).

Next, the party A sends the document of the transaction contents to the party B using the communication means 3-1 and the server 2-
1 (S44a). At the same time, the electronic signature is transmitted via the server 2-2 using the communication means 3-2 (S44b).

Next, the party B receives the transaction contents (S45a) and the electronic signature (S45b) transmitted from the party A. Then, the party B confirms the transaction content presented by the party A (S46) and authenticates the electronic signature (S47). As a result, when the electronic signature of the party A is authenticated, the party B confirms the contents of the transaction (S48). Then, the party B returns a transaction confirmation to the party A, and the contract is established (S49). on the other hand,
If the electronic signature of the party A cannot be authenticated, the party B returns to the party A that the contract cannot be made (S50).

As described above, the order contents and the electronic signature are transmitted using the two communication paths, so that the information can be prevented from being falsified by a third party during the communication process. .

Next, with reference to FIG. 6, an operation of disclosing the seller credit information by a third party will be described. First, the seller obtains his / her credit information from a third party (S51). Then, the seller encrypts the credit information with the secret key (S52). At the same time, create a public key, split it,
The public key A and the public key B are set (S53).

Next, the seller transmits the encrypted credit information and public key A to the buyer via the server 2-1 using the communication means 3-1 (S54a, S54).
b). The seller transmits the public key B via the server 2-2 using the communication unit 3-2 (S54c).

Next, the buyer receives the credit information, the public key A, and the public key B transmitted from the seller (S55a,
In steps S55b and S55c, the divided public keys are combined and recreated (S56). Then, the buyer decrypts and decrypts the seller's credit information encrypted with his / her private key and the restored public key (S57).

Thus, using two communication paths,
Since the information to be sent is divided and sent, the seller can safely disclose his / her credit information only to a specific buyer. In addition, the buyer can obtain the credit information of the seller via the Internet.

Next, with reference to FIG. 7, a description will be given of an embodiment in which in a transaction requiring immediacy such as a stock transaction using the Internet, a confirmation regarding the conclusion of a trade can be obtained in real time. First, the case A will be described. In the case A, the reply to the confirmation of the conclusion of the sale by the seller is bypassed. The seller provides real-time information such as stock prices. The buyer sees this information and sends a buy / sell instruction to the seller. Then, the seller transmits a confirmation of the establishment of the sale to the buyer when the sale is completed. At this time, the seller transmits a confirmation of the conclusion of the trade using a communication path different from the communication path for providing information and for giving a trade instruction.

Next, the case B will be described. Case B is to bypass the buying / selling instruction from the buyer and the response of the seller to confirm the establishment of the buying / selling. The seller provides real-time information such as stock prices. The buyer sees this information and sends a buy / sell instruction to the seller. At this time, the buyer transmits a trade instruction using a communication path different from the communication path for providing information. Then, the seller transmits a confirmation of the establishment of the sale to the buyer when the sale is completed. At this time, the seller uses the same communication path as the communication path instructing the buying and selling, and transmits a confirmation of the completion of the buying and selling.

As described above, by conducting a transaction using two communication paths, even if traffic on one communication path increases, information can be transmitted reliably and promptly by another communication path. . In the above-described operation, the information divided into the respective communication paths is transmitted using a plurality of communication paths, but the same information is transmitted to each of the plurality of communication paths. And
The matching may be performed on the receiving server side. For example, a server that transmits the same information to two communication paths and receives the information checks the contents when the two information is received, and accepts the information only when they match. I do. By doing so, even if the information is tampered in the middle of the communication path, the information can be rejected.

[0041]

As described above, according to the present invention, information to be transmitted is divided into a plurality of pieces, and the divided information is transmitted using a plurality of different communication paths. In merchandise transactions and the like, it is possible to improve the confidentiality of confidential matters between parties. Further, since the confidentiality is improved, the encryption of the transmission data can be simplified, and as a result, the effect that the communication cost can be reduced can be obtained. Further, an effect is obtained that information can be prevented from being falsified by a third party in the course of communication.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a state transition diagram showing the operation of the Internet commodity trading method.

FIG. 3 is a state transition diagram showing the operation of the Internet commodity trading method.

FIG. 4 is a state transition diagram showing the operation of the Internet commodity trading method.

FIG. 5 is a state transition diagram showing the operation of the Internet commodity trading method.

FIG. 6 is a state transition diagram showing the operation of the Internet commodity trading method.

FIG. 7 is a state transition diagram showing the operation of the Internet commodity trading method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Personal computer, 2-1-4 ... Server group, 3-1-4 ... Communication means, 4 ... Router, 5 ... Internet, 6 ... WWW server.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kenichiro Hosobuchi 1-8-10 Kichijoji Honcho, Musashino-shi, Tokyo Mitsubishi Materials Corporation Mobile Business Development Center (72) Inventor Michio Matsuoka Kichijoji-Honchoichi, Musashino-shi, Tokyo Mitsubishi Materials Corporation Mobile Business Development Center (72) Inventor Seika Aruga 1-8-10 Kichijoji Honmachi, Musashino City, Tokyo Mitsubishi Materials Corporation Mobile Business Development Center (72) Invention Person Shigeki Kokubu 4-8-8 Zenpukuji, Suginami-ku, Tokyo F-term (reference) GA11 GB03 HA10 JA08 KA16 KA17 KC47 KH30

Claims (7)

[Claims] 1. A business transaction method using the Internet, wherein the buyer uses n types (n is a natural number of 2 or more) of communication means, and the buyer uses n communication devices owned by different Internet providers. When connecting to a server and transmitting information related to a commercial transaction, the information is divided into n, and each of the divided information is transmitted to the WWW server on which the seller performs the service via the n servers. Internet commerce method characterized by doing. 2. The internet commerce method according to claim 1, wherein, when the commerce information is divided, an order content and personal identification information of a buyer are transmitted separately. 3. The Internet commerce method according to claim 2, wherein the Internet commerce method encrypts and transmits the personal identification information of the buyer. 4. The Internet commerce method according to claim 2, wherein the Internet commerce method encrypts the personal identification information of the buyer, further subdivides the encrypted information and transmits the information. 5. The personal identification information of the buyer is a credit card number.
Internet commerce method according to any of the above. 6. The Internet commerce method according to claim 2, wherein the identification information of the individual buyer is an electronic signature. 7. A commercial transaction method using the Internet, wherein the buyer uses n types (n is a natural number of 2 or more) of communication means, and the buyer uses n types of communication means owned by different Internet providers. When connecting to a server and transmitting information relating to a commercial transaction, n identical information is transmitted to the WWW server on which the seller performs the service via the n servers, and the n information is transmitted. The Internet WWW server, wherein the WWW server receives the information, checks all the received information, and accepts the information when all the information matches.